PCU:
Ordered a common one with +5V /12V supply up to 2Aarcadeforge.net/Supergun-MAK-S…amma-5V-und-12V::107.html
My does work with all different pcbs and board so far (igs PGM, PGM2, Atomiswave, MVS, Asterix PCB, ...) without any issue.
There is no voltage regulator included - Voltage between 5.1 - 5.23V. Only focus I had was on 4-pin MOLEX connector that fits with the used supergun.

looking forward to see your project
Let me know if you need further details.

One Year ago I had the Idea of building a Supergun just for JVS Systems. Since there were always too many components lying around, I/O, extra PSU etc...

So I decided to put everything in a box and have a safer option to bring to events and use in my Gaming Location.
I always had concerns about bringing JVS setups to events since power sources we're always kinda open with risk of shock or shorting .